Maintenance Chief
Disrupting the peace with an old chainsaw
- Local time
- 7:51 PM
- User ID
- 11378
- Joined
- Jan 4, 2020
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- South Carolina
Is that the one with the AM cylinder?Back a few pages, 028 Wood Boss. I did go through the carburetor again, replaced the gaskets and diaphragms and gave it a thorough cleaning, reset the jets to 1-1/14 turns open. Once again the saw starts and idles fine but acceleration is very sluggish. I should replace the clutch (rattles @ idle and engages vey low RPM) but I am reluctant to put more into this project not knowing if it will help or not.
I really don't know where to go next.
Mark
Is it a points or electronic one? Ignition could be getting weak if it’s electronic they were know to fail. I have used chips in them and if it’s a points saw and it was converted to chip they were lazy unless advanced someBack a few pages, 028 Wood Boss. I did go through the carburetor again, replaced the gaskets and diaphragms and gave it a thorough cleaning, reset the jets to 1-1/14 turns open. Once again the saw starts and idles fine but acceleration is very sluggish. I should replace the clutch (rattles @ idle and engages vey low RPM) but I am reluctant to put more into this project not knowing if it will help or not.
I really don't know where to go next.
Mark
I thought the one I had was a separate trigger on my 028 but was so long ago I may not have remembered and was thinking of a different saw. Maybe I was thinking of the 031 points saw I needed to advance a full fin on the flywheel to get it to run properly after installing an nova 2 chip.I also asked about possible points ignition a few posts back. Mark would certainly not be afraid to service a points system should it indeed have one..., and he realized it did.
Some folks just assume 028s were new enough to have electronic modules, which btw are a common 0000-400-1300 universal coil. They are about as bullet proof as they come and I've never seen a failure or heard of them being problematic in any of their many applications.
The good news is, they'll also swap right in to a points 028. No flywheel change and run just fine. Just snip the points setup and go. Play with timing if you like, but it's usually not necessary -- and the 028s aren't exactly known for being screamers anyway.
Port timing would be easy enough to check if it's suspected to be causing the problem, but my money is on the ignition. Hell, may have originally been points and someone converted to electronic and simply used the wrong module.
BTW, aftermarket 1300 modules are cheap and the ones I've used work fine -- if I don't have one just laying around. They were in everything for quite a few years. New OEM these days is well over $100 for one.
Could also be an aftermarket carb and not realized.
Usually easy saws to revive even from terrible condition and can become reliable workhorses, though a bit slow and heavy -- like many of us are becoming. LOL
Mark I've got a points set up for the 028 if you want?The 028 WB in question has electronic ignition.
Here is the coil #
View attachment 386110
The crankcase
View attachment 386111
And the flywheel.
View attachment 386112
Unfortunately I do not have another coil on hand that will fit this saw in order to test the electronic ignition coil. I did reset the coil/flywheel gap to 0.005/0.006" and it did not seem to have any positive impact.
I am still at a loss as to what to do with this saw.
Mark